VAPOR DISPENSING DEVICE WITH VENT HAVING SELF-REGULATING PRESSURE AND SELF-CLEANING FEATURES

摘要

A vapor dispensing device for dispensing vapor into an environment is provid ed self-regulates vapor pressure of a reservoir with an evaporation chamber and allows lower volatile ingredients to return to the reservoir. In accordance with an exemplary embodiment of the invention, a vent is in communication between an emitter pad in the evaporation chamber of the dispensing device and the reservoir. This vent allows lower volatility ingredients to flow back into the sealed reservoir extending the useful life of the vapor dispensing device.